CN102980943A - Method for detecting inner conductor interface of cable metal pipe - Google Patents
Method for detecting inner conductor interface of cable metal pipe Download PDFInfo
- Publication number
- CN102980943A CN102980943A CN2012104799103A CN201210479910A CN102980943A CN 102980943 A CN102980943 A CN 102980943A CN 2012104799103 A CN2012104799103 A CN 2012104799103A CN 201210479910 A CN201210479910 A CN 201210479910A CN 102980943 A CN102980943 A CN 102980943A
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- metal ball
- metal
- sound
- inner conductor
- inner wire
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Abstract
The invention discloses a method for detecting an inner conductor interface of a cable metal pipe. The method comprises the following steps of: (1) preparing a metal ball, wherein the diameter of the metal ball is smaller than the inner diameter of an inner conductor of the metal pipe and is greater than the inner diameter of an interface lining; (2) putting the metal ball from one end of a core cable to be detected or a finished cable to be detected into the inner conductor of the metal pipe; (3) rolling the metal ball, namely lifting the input end of the metal ball or shaking a cable so that the metal ball can roll in the inner conductor of the metal pipe under the action of gravity; and (4) detecting sound, wherein a worker hold a sound measurer with a hand to detect sound along with rolling of the metal ball during the rolling of the metal ball, the position where the sound measurer does not detect sound is the inner conductor interface. By the method, the inner conductor interface of the metal pipe is detected according to impact sound between the rolling metal ball and the inner conductor of the metal pipe; detection equipment is simple; the number of detection steps is small; the cost is low; and the metal is easy to operate.
Description
Technical field
The present invention relates to the cables manufacturing field, refer in particular to the detection method of cable metal pipe inner wire interface.
Background technology
The structure of cable mainly is comprised of sheath, outer conductor, insulation course and inner wire as shown in Figure 1, and inner wire is welded by hollow metal tube, form interface at the metal tube weld, for guaranteeing welding quality, to increase liner at interface, its internal diameter is smaller than the internal diameter of metal tube itself.
Inner wire just is insulated layer and covers after making heart yearn or product line, can't directly observe the position of finding its welding junction from the outside.And in cable finished product detection or use procedure, often need to find the welding junction position of inner wire.
At present, the pxrd analysis instrument is adopted in the detection of interface position mostly, but this method testing cost is high, complicated operation.
Summary of the invention
The purpose of this invention is to provide a kind of detection method of cable metal pipe inner wire interface, the method can overcome the deficiencies in the prior art, realizes the fast simple detection of metal tube inner wire interface.
The object of the present invention is achieved like this:
The present invention includes following steps:
(1) prepares Metal Ball: prepare diameter less than metal tube inner wire internal diameter but greater than the Metal Ball of interface liner internal diameter;
(2) put into Metal Ball: Metal Ball is put into the metal tube inner wire from an end of heart yearn to be detected or product line;
(3) rolling Metal Ball: Metal Ball is put into end raise or shake cable, make Metal Ball can rely on gravity in the metal tube inner wire, to roll;
(4) survey sound: in the Metal Ball rolling process, follow the Metal Ball scrolling position by the hand-held sound-measuring device of workman and detect, the position that sound-measuring device does not detect sound is the inner wire interface.
In the Metal Ball rolling process, can send the clash with the metal tube inner wire, when Metal Ball is rolled to the inner wire interface, because the Metal Ball diameter is larger than interface liner, so Metal Ball can be stuck in herein, just do not have strike note to send, sound-measuring device does not just detect sound yet, can judge that thus this place is the inner wire interface.
As preferred implementation of the present invention, used Metal Ball is steel ball.
The beneficial effect of the method is: with the strike note detection metal tube inner wire interface of metal tube inner wire, checkout equipment is simple when adopting Metal Ball to roll, and detecting step is few, and cost is low, and is easy to operate.
Description of drawings
Fig. 1 is the copper core cable structural representation.
Fig. 2 is step sketch of the present invention.
Be labeled as among the figure: 1-metal tube inner wire, 2-insulation course, 3-outer conductor, 4-sheath.
Embodiment
(1) is ready to internal diameter less than metal tube inner wire internal diameter, greater than the steel ball of liner internal diameter;
(2) steel ball is put into the metal tube inner wire from an end of heart yearn to be detected or product line;
(3) core line disk or finished product drum are placed on gantry, this gantry is unwrapping wire gantry; And steel ball put into the blank panel that is connected to another take-up gantry, and take-up gantry is high than unwrapping wire gantry, and steel ball can rely on gravity to roll in the inner wire metal tube when take-up;
(4) follow the steel ball scrolling position with the hand-held sound-measuring device and detect, when the sound-measuring device demonstration does not have strike note, show that steel ball is stuck herein, this place is the inner wire interface.
The above embodiment has only expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (2)
1. the detection method of cable metal pipe inner wire interface is characterized in that the method may further comprise the steps:
(1) prepares Metal Ball: prepare diameter less than metal tube inner wire internal diameter but greater than the Metal Ball of interface liner internal diameter;
(2) put into Metal Ball: Metal Ball is put into the metal tube inner wire from an end of heart yearn to be detected or product line;
(3) rolling Metal Ball: Metal Ball is put into end raise or shake cable, make Metal Ball can rely on gravity in the metal tube inner wire, to roll;
(4) survey sound: in the Metal Ball rolling process, follow the Metal Ball scrolling position by the hand-held sound-measuring device of workman and detect, the position that sound-measuring device does not detect sound is the inner wire interface.
2. the detection method of cable metal pipe inner wire interface according to claim 1 is characterized in that, Metal Ball is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104799103A CN102980943A (en) | 2012-11-23 | 2012-11-23 | Method for detecting inner conductor interface of cable metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104799103A CN102980943A (en) | 2012-11-23 | 2012-11-23 | Method for detecting inner conductor interface of cable metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102980943A true CN102980943A (en) | 2013-03-20 |
Family
ID=47855161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104799103A Pending CN102980943A (en) | 2012-11-23 | 2012-11-23 | Method for detecting inner conductor interface of cable metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102980943A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2724028A1 (en) * | 1977-05-27 | 1978-11-30 | Geb Oetinger Elfriede Schmitt | Differential pressure transducer and indicator - has curved tube with ball bearing as actuator and indicator element rolling inside tube |
| EP0147648A1 (en) * | 1983-12-15 | 1985-07-10 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Device for the inspection and maintenance of tubes with small bending radii |
| CN101115950A (en) * | 2005-02-07 | 2008-01-30 | 全技术有限公司 | Anomaly detector for pipelines |
| CN102444786A (en) * | 2011-12-07 | 2012-05-09 | 天津大学 | Spherical internal detector for detecting petroleum transmission pipeline leakage |
-
2012
- 2012-11-23 CN CN2012104799103A patent/CN102980943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2724028A1 (en) * | 1977-05-27 | 1978-11-30 | Geb Oetinger Elfriede Schmitt | Differential pressure transducer and indicator - has curved tube with ball bearing as actuator and indicator element rolling inside tube |
| EP0147648A1 (en) * | 1983-12-15 | 1985-07-10 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Device for the inspection and maintenance of tubes with small bending radii |
| CN101115950A (en) * | 2005-02-07 | 2008-01-30 | 全技术有限公司 | Anomaly detector for pipelines |
| CN102444786A (en) * | 2011-12-07 | 2012-05-09 | 天津大学 | Spherical internal detector for detecting petroleum transmission pipeline leakage |
Non-Patent Citations (3)
| Title |
|---|
| 张伟等: "钢制管道清管经验及清管器卡堵的应急处理", 《天然气与石油》 * |
| 柳金海: "《工业管道施工安装工艺手册》", 31 May 2003 * |
| 江苏省机械工业锅炉科技情报网: "《工业锅炉实用手册》", 31 August 1991 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |